Temperatures will be reluctant to rise above freezing early today so any remaining mixed precipitation can still cause slippery spots on untreated roadways. Temperatures climb to above-freezing by the mid-day and afternoon and should peak near 40 degrees. A cold, dry air mass will push in for Friday and there should be plenty of sunshine as high pressure takes control. Another system will bring us snow later Saturday and Saturday night and accumulations are likely…snow can mix with sleet and/or freezing rain at times. Partial sunshine should return later Sunday and temperatures will climb into the 40’s so there shouldn’t be any travel issues in the leadup to the Super Bowl (at 6:30pm). The active weather pattern will likely result in another storm system during the first half of next week which could bring more snow to the region.
Read More
An active weather pattern will bring three winter storm systems to the Mid-Atlantic region during the next week or so. The first system will bring a mix of precipitation types to the DC-to-Philly-to-NYC corridor from tonight into tomorrow morning and all areas are likely to feature slippery road conditions for the Thursday AM commute. A thin layer of air with slightly above-freezing temperatures will push into the upper part of the atmosphere later tonight from the DC metro region to southeastern PA and this will lead to many hours of sleet and/or freezing rain depending on location. It looks like mainly a snow event in the NYC metro area during the overnight and early morning hours though sleet and rain can mix in at times. All areas along the Mid-Atlantic’s I-95 corridor are likely to experience slippery road conditions for the Thursday AM commute. A similar scenario with mixed precipitation is likely this weekend in the Mid-Atlantic region from late Saturday into early Sunday and there is the potential for accumulating snow during the early-to-middle part of next week as this very active weather pattern continues.
Read More
A fresh, cold and dry air mass pushed into the region last night following the daytime passage of a cold frontal system. This air mass is being anchored today by strong high pressure over New England and it helps to set the stage for snow here later tonight which can mix with sleet by morning. Snow and sleet in the morning can mix with or change to rain which can freeze on untreated surfaces…expect slippery road conditions for the AM commute. Enough milder air pushes in by mid-day on Thursday for the precipitation to wind down as plain rain and afternoon temperatures should peak near 40 degrees. A repeat performance is possible this weekend with a ”snow-to-sleet-to-freezing rain-to-plain rain” scenario on the table. Looking ahead, there is an accumulating snow threat for the Mid-Atlantic region during the early-to-middle part of next week.
Read More
An active weather pattern will likely bring three winter storm systems to the Mid-Atlantic region during the next week or so. The first system will bring a mix of precipitation to the DC-to-Philly-to-NYC corridor from late tomorrow into Thursday morning and all areas are likely to experience slippery road conditions for the Thursday AM commute. A thin layer aloft of slightly above-freezing air will push into the region on Wednesday night, and this will play a big role in precipitation types ranging from snow-to-sleet-to-freezing rain to just plain rain. Always a difficult forecast when dealing with these thin layers, but my initial feeling on this mid-week threat in the I-95 corridor is as follows: DC metro region will get hit hard with freezing rain leading to a significant ice-buildup, the Philly metro region may have an extended period of sleet, and the NYC metro region may actually see snow for much of the event that certainly can mix with sleet at times. A similar weather event could unfold for the upcoming weekend in the Mid-Atlantic region with a “snow-to-sleet-to-freezing rain-to-plain rain” scenario on the table. Looking past the weekend system, there very well may be an accumulating snow threat for much of the Mid-Atlantic region by the middle of next week and it can be significant.
Read More
In just the next week or so, it appears there will be as many as three opportunities for snow, ice and rain in the Mid-Atlantic region. The first such opportunity will come from later tomorrow into Thursday and this could turn out to be quite a mess around here for the Thursday AM commute with some accumulations of snow and sleet. The setup will include a cold frontal passage today that will be followed by an influx of fresh cold and dry air in the overnight hours while at the same time moisture begins to gather over the Tennessee Valley. This dense, cold air mass will be quite reluctant to give up its ground on Wednesday night and Thursday as the moisture arrives and surface temperatures will be slow to climb to above freezing levels until mid-day Thursday.
Looking ahead, there can be a repeat performance in the Mid-Atlantic region during the upcoming weekend with “snow-to-sleet-to-freezing rain-to-plain rain” on the table. Looking even farther ahead, there may be an accumulating snow threat by the middle of next week in this on-going very active weather pattern.
Read More
February is now a few days old, and it looks like it will be a very active month with plenty of cold air around and it is likely to feature a polar vortex “split” and high-latitude blocking. There should be plenty of opportunities for snow, ice and rain in the Mid-Atlantic region as we progress through the month with just the next week or so likely to feature as many as three precipitation events. The first opportunity comes at mid-week, and it may turn out to be the first significant icing event in quite awhile for much of the Mid-Atlantic region with possible snow on the front end and plain rain on the back end. A similar scenario may take place this weekend with frozen precipitation possible on the front-end of the next storm system and plain rain on the back end. A third storm may threaten by the middle of next week and this one should have more cold air to work with raising the chance of accumulating snow in the Mid-Atlantic region.
Read More
A warm front lifted through the region last night and today will become milder with afternoon temperatures likely reaching into the upper 40’s for highs. A colder air mass pushes in by mid-week and it’ll be supported by a strong high pressure system situated over New England. This is likely to set the stage for some frozen precipitation around here from late Wednesday into early Thursday including a period of sleet and freezing rain. On Thursday, temperatures should climb to warm enough levels for plain rain in most of the Mid-Atlantic region. Looking ahead, there may be a similar scenario to deal with this weekend with the possibility of some frozen precipitation later Saturday/Saturday night and then likely plain rain on Super Bowl Sunday. Yet another system could threaten us with snow by the middle of next week as the overall pattern looks very active for the month of February.
Read More
February is now underway and it looks like it will be a very active month with plenty of cold air around and is likely to feature a stratospheric polar vortex split that can impact US temperatures all the way into March. There should be plenty of opportunities for snow, ice and rain in the Mid-Atlantic region and Northeast US as we progress through the new month with just the next week or so likely to feature as many as three precipitation events. Another player on the field that will have to be monitored this month will be the occasional appearance of the Southeast US high pressure ridge – often seen during La Nina winters – and this enhances the possibility of quite warm conditions across the southern states and also chances for severe weather.
Read More
The month of January has been a dry one in the DC-to-Philly-to-NYC corridor, but it will end on a wet note with rainfall today; primarily, focused on the PM hours. Moderately cold conditions will follow for the weekend likely with clouds giving way to sun on Saturday and sun giving way to clouds on Sunday. There can be some snow in the area on Sunday night from a low pressure system passing by to our north. A warm front should lift northward across the area by early Monday paving the way for milder conditions to start the new work week and then a cold front arrives by early Tuesday of next week.
Read More
February can feature quite active weather across the nation with increasingly warm and humid air down across the southern states and some very cold Arctic air remaining up to the north. In fact, this kind of clash in the atmosphere appears to be setting up for next week which may lead to a storm system that features a wide range of precipitation types at mid-week from rain/thunderstorms in its warm sector to snow and ice in the cold sector. Eventually, it appears the cold air will “win” this battle and overspread the eastern half of the nation in about ten days or so. By the way, Sunday is Groundhog Day and - if I were Phil - I might be apt to see my shadow as it looks like there is plenty of cold air left in the tank for 6 more weeks of winter. Meanwhile, in the short-term, the month of January will end on a wet note in the Mid-Atlantic region with primarily a rain event from late tonight through Friday; however, accumulating snow is likely from interior New York State to New England where at least a few inches are on the table.
Read More